Back to results
US 2002/0164477 A1Published application
Release coating for tapes
OwnerGregory J. Lonc, Jan J. Spitzerinventors
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a release coating composition comprising a polymer of butadiene, styrene, acrylonitrile polymer having a Tg from 0° C. to about 75° C. The present invention is also directed to an article of manufacture having a release coating comprising the polymer for pressure sensitive adhesives.
Claims18
A method comprising:
- a) providing an adhesive-coated backing, wherein an adhesive is coated on at least one side of the backing;
- b) applying a release coating to one of:
- i) the backing on the side opposite of the adhesive, wherein the adhesive is coated on only one side of the backing, and
- ii) at least one substrate to form a release coated substrate;
- and
- c) drying the release coating;
- and wherein when the release coating is applied to the at least one substrate, the method further comprises one of:
- i) contacting the release coated substrate to the adhesive-coated side of the backing, wherein the adhesive is coated on one side of the backing;
- and
- ii) contacting a first release coated substrate to a first side of the adhesive-coated backing and contacting a second release coated substrate to a second side of the adhesive-coated backing, wherein the backing is coated with the adhesive on both sides of the backing, and wherein at least one of the first release coated substrate and the second release coated substrate comprise the release coated substrate,
- wherein, the release coating comprises at least one of:
- i) a first composition comprising a copolymer having a Tg from 0° C. to about 75° C., wherein the copolymer comprises a reaction product of from greater than 0% to about 50% by weight of acrylonitrile monomer, and from about 50% to less than 100% by weight of butadiene and styrene monomers;
- and
- ii) a second composition comprising a copolymer having a Tg from 46° C. to about 75° C., wherein the copolymer comprises a reaction product of from 0% to about 50% by weight of acrylonitrile monomer, and from about 50% to about 100% by weight of butadiene and styrene monomers.
11 more elements
An article of manufacture, comprising:
- (a) a backing comprising an adhesive-coated backing side;
- and
- (b) a release coating applied to the other side of the backing of (a) or a separate backing, wherein the release coating comprises a copolymer having a Tg from 46° C. to about 75° C., wherein the copolymer comprises a reaction product of from 0% to about 50% by weight of acrylonitrile monomer, and from about 50% to about 100% by weight of butadiene and styrene monomers;
- wherein the release coating is in contact with the adhesive-coated backing side.
1 more element
Dependencies are inferred from the claim text.